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Related Experiment Videos

Tuberous sclerosis complex: renal imaging findings.

Keith A Casper1, Lane F Donnelly, Bin Chen

  • 1Department of Radiology, Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH 45229-3039, USA.

Radiology
|November 1, 2002
PubMed
Summary

Renal angiomyolipomas and cysts are common in pediatric patients with tuberous sclerosis complex (TSC). These lesions often increase in size and number with age, with angiomyolipomas being more frequent.

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Area of Science:

  • Pediatric Radiology
  • Nephrology
  • Genetics

Background:

  • Tuberous sclerosis complex (TSC) is a genetic disorder that can affect multiple organs, including the kidneys.
  • Renal manifestations in TSC, such as angiomyolipomas and cysts, are common and can lead to significant morbidity.
  • Longitudinal imaging studies are crucial for monitoring lesion progression in pediatric TSC patients.

Purpose of the Study:

  • To characterize renal imaging findings in a large cohort of pediatric patients with TSC.
  • To analyze the changes in size and number of renal angiomyolipomas and cysts over time.
  • To determine the prevalence and demographic distribution of renal lesions in young TSC patients.

Main Methods:

  • Retrospective review of 139 renal imaging studies (ultrasound, CT, MRI) in 59 pediatric patients with TSC.

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  • Characterization of angiomyolipomas and cysts by number, laterality, largest diameter, and changes over time.
  • Statistical analysis, including chi-squared test, to compare lesion subpopulations.

    • Main Results:

    • Angiomyolipomas detected in 80% of patients, often numerous and bilateral.
    • Cysts identified in 47% of patients, typically fewer than five and bilateral.
    • Lesion growth (size/number) observed in 40% of angiomyolipomas and 26% of cysts during follow-up.
    • Mean age of lesion onset was around 9 years for both cysts and angiomyolipomas.

    Conclusions:

    • Renal angiomyolipomas and cysts are highly prevalent in pediatric TSC.
    • These lesions demonstrate a tendency to increase in size and number with advancing age.
    • Angiomyolipomas are more common and often more numerous than cysts in this population.